Home / 20,735.18-28,614.48-11,303.74

Finding the Fourth Proportional to 20,735.18, 28,614.48 and 11,303.74

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Solution

The fourth proportional to 20,735.18, 28,614.48 and 11,303.74 is: 15,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.18 : 28,614.48 = 11,303.74 : x
  2. Step 2: Convert to fraction form
    20,735.18/28,614.48 = 11,303.74/x
  3. Step 3: Cross multiply
    20,735.18x = 28,614.48 × 11,303.74
  4. Step 4: Simplify right side
    20,735.18x = 323,450,642.16
  5. Step 5: Solve for x
    x = 323,450,642.16/20,735.18
  6. Step 6: Final answer
    x = 15,599.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.